ergonomics wrist position

How Should I Position My Wrist at the Computer?

How should I position my wrist when sitting at my workstation?  An ergonomic specialist will usually recommend positioning the wrist in a neutral position. 

But, what does this mean?

Keeping the wrist in a neutral posture means keeping the wrist aligned with the forearm.  You should be able to draw a straight line from your elbow to your palm.   When typing or using a mouse, your palm should not face the screen but the floor.

How can I accomplish this?

Most ergonomic specialist will say that ergonomic consulting is like Jenga.  You try to remove one piece, but always have to be careful that another section does not tip.  A person who simply follows the words, “Keep your wrist aligned with your forearm” might have to raise his or her shoulders or sit far from the desk.  This can lead to uncomfortable positions, shoulder, and back pain.

As with all things ergonomics, you need to make adjustment based on your own height, work habits, and regularly used computer equipment.  When we say keep the wrist in a  “neutral position,”  your shoulders, as well, should be in a relaxed position, not raised. Your elbow should be close to your body and positioned at about a 90-110 degree angle.  You should have your elbows above or level with the keyboard and mouse.  To accomplish this, you might need to use an adjustable keyboard tray or raise the height of your chair.  Sometimes, simply removing the legs of your keyboard can contribute to level wrist posture.   I would definitely play around with the height of your chair (maybe raising it a few inches) to try and achieve level elbow and wrist posture.  Use trial and error.  You should always adjust the equipment you own first before purchasing a new keyboard tray.

As an ergonomic consultant specializing in office ergonomics, when I am asked the question, “What is the correct position for my wrist?” I will say, “Keep it in the neutral position.  Let’s try to get you in this neutral position without impinging on the other aspects of good posture. “

Thanks for reading,

Shaul Lent CEAS, MA, OTR/L
Lead Ergonomic Specialist
Ergonomics Advnace

Ergonomic Footrests: Can it Help?

Can an ergonomic footrest help me?

A good ergonomic footrest can be one of the most important items at your workstation.  An ergonomic footrest is beneficial for people whose feet do not reach the floor.  Many office chairs sold today are pretty tall, and shorter employees, whose feet  barely reach the floor, will scoot away from their backrest to stabilize themselves.  However, this “easy fix” solution will often cause discomfort in other areas.  With the employee’s back away from the chair’s back, employees will often report lumbar and shoulder pain.

An ergonomic footrest might solve this problem.  With an ergonomic footrest, a person can sit completely against their chair while keeping their shoulders and back in a neutral, comfortable position.  In other words, with an ergonomic footrest, a shorter employee can keep their body at an elevated position while still maintaining comfort.

There are other advantages to a ergonomic footrest, even those whose feet do reach the floor.  An ergonomic footrest will allow people to reduce the pressure on their thighs and buttocks.  This is a great advantage for those sitting in their chair for long periods of time or those suffering from sciatica.  Additionally, many of the footrests used today are adjustable.  Adjustable footrests give people the ability change positions frequently, limiting body pressure and keeping soreness at bay.

Please note, people should never stand on a footrest and be conscious about walking near a footrest as it can be a tripping hazard.  Additionally, people should measure exactly their height in relation to the table top before purchasing a footrest.  A person might purchase a footrest and then realize that he or she can’t use it since there is not enough clearance for the thighs.  

 

A trained ergonomic specialist can always help you purchase an appropriate ergonomic footrest.  Whether your company is based in Los Angeles or on the outskirts of San Jose, at Ergonomics Advance, our ergonomic specialists come to your work and take the dimensions of your desk and workstations to make sure you are getting the right ergonomic products that meets your clients’ specific needs.  We want to make sure you get the correct ergonomic products that meets your employees’ needs, saving you time and money.  We want to make sure your employees can work  productively and of course, work injury and pain free.

When I am asked the question, “Can an ergonomic footrest help me?” I usually answer “It can help depending on your height and the height of your desk and workstation.  Let’s have you try a couple footrests to try to meet your specific needs.”

 

Thanks for reading,

 

Shaul Lent CEAS, MA, OTR/L

Exercises recommended by an ergonomic specialist

Reducing Wrist Discomfort with Exercise

Wrist Stretches?

Which exercises help reduce wrist discomfort?  What is the most important stretch I can do to relieve the discomfort in my wrist?

When I perform an ergonomic assessment, I will often notice that the more clients use their wrist during computer tasks the more chance they will experience discomfort.  This is especially true for those who spend the majority of their day in front of a computer or a tablet.  In the beginning of the day,  a client might not experience soreness.  But, as the day progresses, the discomfort increases.  What can a client do to decrease this discomfort?  Is there are quick-fix, an exercise that you can perform?    As an ergonomic specialist trying to alleviate discomfort in the workplace, we will usually recommend developing a stretching routine for the wrist.  One exercise I often recommend is nerve gliding exercises (Note: If you have recent health problems, injury, surgery or if these exercises cause you more pain, consult with an ergonomic expert before continuing as you might not be performing the exercise correctly).  For this exercise, first make a fist and bring that fist near your face.  Next open your hand gently with your palm facing your face.  Then, slowly bend your wrist away from your face and hold this position for a few seconds. Repeat five times.  Depending on your needs, the ergonomic consultant will provide a range of other stretches as well as other nerve gliding exercises.  This should relieve some of the pain in your wrist, at least temporarily.

Though this should help, one should always realize that exercise is not everything.  No exercise, alone, can permanently relieve wrist discomfort.  During the ergonomic evaluation, we will often notice that the root of this aggravation is cause by repetitive motions.  An ergonomic consultant will often notice how the wrist is bent forward and increasing the aggravation.  Imagine the nerve in your wrist as a cord used to charge a cell phone.  If you continuously bend that cord, day after day, eight hours a day, the cord will probably become damaged.  It will be difficult to charge your phone as the connection between the phone and outlet is interrupted.  We can think of the wrist in the same way.  The more we place the wrist in awkward postures especially when using the mouse constantly, the more the messages going from our brain to our wrist and fingers is interrupted.  Discomfort is the result.  To solve the problem, an ergonomic specialist will need to adjust the workstation so that the wrist is placed in a more neutral position (See this post for more details about working in an ergonomically sound neutral posture).  The wrist and palm should be completely aligned with your forearm when mousing. The “cord” should not bend. This could be a very inexpensive proposal.  It might require the employee to adjust the way he or she is positioned and grasping the mouse.  Or, it might require the employer to purchase ergonomic equipment to allow the employee to grasp the mouse while keeping the wrist in a neutral position.  It all depends on the individual client, their current workstation, and the computer or tablet equipment they are currently using.  This is where an ergonomic consultant can help.  We each interface with our computers or tablets differently.  Each person is different and no two wrists are the same.  In order to truly solve a problem, recommendations from a ergonomic specialist is key to making the appropriate adjustments to relieve discomfort.

Thanks for reading,

Shaul Lent CEAS, MA, OTR/L

Sources:

Cooper, C.,  Fundamentals of Hand Therapy (Mosby Inc: 2007)

koala lumbar support_ergonomic assessment

The Ergonomic Evaluation and Lumbar Supports

Which lumbar cushion should I get? 

As ergonomic experts specializing in providing ergonomic assessments and evaluations, we really need to see exactly how you interface with your computer first before we can decide if a lumbar support is right for you.   However, for our readers looking for ergonomic tips and those looking to perform a self administered ergonomic assessment it is always good to understand the purpose of a lumbar support and to think critically before investing in one.

Before purchasing a lumbar support, clients must first see if his or her chair already provides lumbar (lower back) support and if this support is sufficient.  Many ergonomic chairs nowadays come with some lumbar support.  And, while most ergonomic chairs do provide adequate support for a person’s lower back, some do not.  Additionally, lumbar cushions can reduce the seat depth of your chair and could put certain individuals on the edge of their seat.  With that said, there are some great lumbar supports that adapt to a person’s back curvature.  These types of supports and cushions could fit even a taller person.  Many of my clients love the adjustable mesh lumbar supports that adjusts to your individual back shape.  You control the amount of lumbar support based on the curvature of your spine and the amount of pressure you place on the support when sitting back in your chair.  Some clients, on the other hand, prefer a larger, more supportive lumbar cushion.  I once had a lumbar cushion that did not fit anybody.  However, during an ergonomic assessment in Los Angeles one of my clients loved this cushion.  Out of all the lumbar supports I showed him, he always came back to the big and bulky lumbar cushion.  It fit him according to his particular back curvature and chair.  He tried it out for a few days, continued to compliment the cushion, and purchased it.

So, when I get the question: “Should I get a lumbar support or cushion?” I always answer, “let me see how one could fit during an ergonomic assessment.”  Clients should always try out lumbar supports and cushions before purchasing.  What fits one person, might not fit another.  Client preference is one of the most important considerations in ergonomics.  If the product does not fit your dimensions or your chair during your visit with an ergonomic consultant, don’t get it.  If the cushion feels right and it does not put you on the edge of your seat, then it’s for you.

Thanks for reading,

Shaul Lent CEAS, MA, OTR/L